摘要
研究了Ｎｄ（ｎａｐｈ）_３－Ａｌ（ｉ－Ｂｕ）_２Ｃｌ催化体系引发丁二烯聚合动力学，得到了聚合速度方程式－ｄ［Ｍ］／ｄｔ＝ｋ_ｐα［ｃ］０［Ｍ］。发现聚合物的Ｍｎ在聚合过程中随着单体转化率的增加而下降。测得了该催化体系的活性中心浓度和有关动力学参数。
The kinetics of butadiene polymerization with tow catalyst systems consisted of Nd(naph)3 and Al (i-Bu)3 or Al(i-Bu)2H was studied and a polymerization rate equation was obtained.It was found that the molecurlar weight of polybutadiene derceased with the increase of conversion.The concentration of active center and the kinetics parmeters in the two systems were determined.
出处
《合成橡胶工业》
CAS
CSCD
北大核心
1994年第2期88-92,共5页
China Synthetic Rubber Industry
关键词
稀土催化剂
丁二烯
聚合
聚丁二烯
rare earth catalyst
butadiene
polymerization kinetics.
